Means for securing cylinders and valve-chests to saddles.



No. 7l|,886. Patented Oct. 2|, I902.

S. M. VAUCLAIN.

MEANS FOR SECURING CYLINDERS AND VALVE CHESTS' T0 SA DDLES.

(Application filed Mm". 7, 1902.

(No Model.

4,4 WEM.

TNE nomus PETER5 00.. Pumuumu, WASHINGTON, n. c.

UNITED STATES PATENT OFFICE.

SAMUEL M. VAUOLAIN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO BURNHAM,WILLIAMS do COMPANY, OF PHILADELPHIA, PENNSYLVANIA,

A FIRM. 1

MEANS FOR SECURING CYLINDERS AND VALVE-CHESTS TO SADDLES.

SPECIFICATION forming part of Letters Patent No. 711,886, dated October21, 1902.

Application filed March 7, 1902. Serial No. 97,112. (No model.)

To all whom it may concern.-

Be it known that I, SAMUEL M. VAUCLAIN, a citizen of the United States,residing in Philadelphia, Pennsylvania, have invented 5 certainImprovements in Means for Securing Cylinders and Valve-Chests toSaddles, of which the following is a specification.

The object of my invention is to so couple a cylinder and itsvalve-chest to the saddle of [O a locomotive that there will be a tightjoint between the steam inlet or exhaust passage of the saddle and thepassages leading to or from the valve-chest without interfering with theproper securing of the cylinder-casing to the saddle and to the frame.This object I attain in the following manner, reference being had to theaccompanying drawings, in which Figure 1 is an end View ofalocomotive-cyl- 2o inder and its chest secured to a saddle, part of theview being in section; and Figs. 2 and 3 are views of modifications ofmy invention.

A is the saddle of a locomotive. B is the cylinder.

O is the valve-chest, formed in the present instance as an integral partof the casting of the cylinder B.

The cylinder and chest may form part of an ordinary single-cylinderengine or a tan- ;;0 dem engine, and the connection between thevalve-chest and the saddle may be either that of the high-pressure orthe low-pressure passage, or both. Heretofore it has been a difficultmatter after the cylinder-casting was secured rigidly in place to thesaddle to make a proper joint between the valve-chest and the saddle,and particularly the joint in the steam-supply passage, and owing to theconstant jar of the locomotive and the working of the parts this jointwould leak more or less and cause considerable annoyance. By myinvention I overcome this objection and make a joint between thevalve-chest and the saddle which is perfectly tight.

On the saddle A is an extended flange at, having a lip ct at the lowerend extending under the frame D of the locomotive, and on thecylinder-casting B is an extended flange 1), having a lip b at the upperend extending over the said frame D. A series of bolts 61 rigidly securethe flanges a and b to the frame D.

In the present instance extendingfrom the valve-chest C is a cylindricalprojection C, forming the live-steam passage to the valvechest. Thisprojection extends into a cylindrical opening 6, forming the mouth ofthe steam-passage E in the saddle A. Surrounding the projection O is afollower F, which extends into a groove in the saddle containing packingf. This follower is secured to' the saddle by a series of nuts onstud-boltsf. By this means the follower F can be drawn to compress thepacking f tightly against the projection O on the valve-chest C, so asto 65 make a steam-tight joint at this point. When the cylinder-castingis secured to the saddle and the frame, the follower F is backed off, soas to leave the packing loose in order that the projection C will slideand accommodate itself to the movement of the cylinder-casting but whenthe nuts on the bolts (1 are tightened, so as to rigidly fasten thecylinder to the saddle, then the projection C is in proper position sothat the follower can be forced against the packing f to make a tightjoint.

In the drawings I have simply shown one passage leading from the saddleto the valveohest, and this passage in the present instance is theinitial steam-passage.

It will be understood that in some instances the low-pressure passage ofthe saddle may be connected to the valve-chest or both the high and lowpressure passages may be connected as desired without departing from myinvention, and while I have shown a cylindrical projection it may be ofany shape desired; but I prefer to use a cylindrical proj ection.

Other means of fastening the cylinder-casting to the saddle and frameinstead of the bolts shown may be used, and the cylindercasting may insome instances be connected directly to the saddle when the engine-frameis of a different design.

As shown in Fig. 2, the projection C may be independent of the casingand rigidly secured thereto by bolts or other means, and packing 0 maybe used between the two parts.

In some instances instead of forming the projectio'n on the valve-casingthe projection may be formed 011 the saddle, as shown in Fig. 3, whichwould enter an opening in the valve-chest. In this case the packingandthe follower would be carried by the valve-chest.

I claim as my invention- 1. The combination in an engine, of a saddleandacylinder secured rigidlyto thesaddle, a valve-chest on the cylinder,and a sliding tubular connection between said valve-chest and thesaddle, substantially as described.

2. The combination of the saddle, a cylinder-casting having avalve-chest, means for rigidly securing the cylinder-casting to thesaddle, a projection on either the saddle or the valve-chest, packingbetween the parts, and means for taking up the packing, substantially asdescribed.

3. The combination of a saddle, a cylindercasting having a valve-chest,means for rigidly securing the cylinder-casting to the saddle, aprojection on the valve-chest, a passage in said projection, a passagein the saddle into which the projection extends, and packing forming atight joint between the projection and the saddle, substantially asdescribed.

4. The combination of a saddle having an extended flange, acylinder-casting having a valve-chest and also having an extendedrounding the projection, and a follower, substantially as described.

5. The combination in an engine, of a saddle, a cylinder having avalve-chest, means for rigidly securing the cylinder to the saddle, atubular extension rigidly secured to the valve-chest, packing betweenthe extension and the saddle, and means for taking up the packing,substantially as described.

6. The combination in alocomotive-engine, of the frame, a saddle and acylinder-casting secured rigidly to the frame, a sliding tubularconnection between said casting and the saddle, and means for packingsaid connection from the outside, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

SAMUEL M. VAUOLAIN.

Witnesses:

WILLIAM DE KRAFFT, W. H. TUTTLE.

